142564791831 has 32 divisors (see below), whose sum is σ = 237023743488. Its totient is φ = 74049344640.

The previous prime is 142564791823. The next prime is 142564791839. The reversal of 142564791831 is 138197465241.

It is an interprime number because it is at equal distance from previous prime (142564791823) and next prime (142564791839).

It is not a de Polignac number, because 142564791831 - 2³ = 142564791823 is a prime.

It is a super-2 number, since 2×142564791831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142564791839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1793625 + ... + 1871421.

It is an arithmetic number, because the mean of its divisors is an integer number (7406991984).

Almost surely, 2^142564791831 is an apocalyptic number.

142564791831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142564791831 is a deficient number, since it is larger than the sum of its proper divisors (94458951657).

142564791831 is a wasteful number, since it uses less digits than its factorization.

142564791831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85751.

The product of its digits is 1451520, while the sum is 51.

The spelling of 142564791831 in words is "one hundred forty-two billion, five hundred sixty-four million, seven hundred ninety-one thousand, eight hundred thirty-one".